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A krb5 security update has been released for Debian GNU/Linux 10 LTS to address an issue that may result in a potential Denial of Service (DoS) attack.

DLA 3213-1: krb5 security update

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Debian LTS Advisory DLA-3213-1 Chris Lamb
November 29, 2022
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Package : krb5
Version : 1.17-3+deb10u5
CVE ID : CVE-2022-42898
Debian Bug : 1024267

It was discovered that there was a potential Denial of Service (DoS)
attack against krb5, a suite of tools implementing the Kerberos
authentication system. An integer overflow in PAC parsing could have
been exploited if a cross-realm entity acted maliciously.

For Debian 10 buster, this problem has been fixed in version

We recommend that you upgrade your krb5 packages.

For the detailed security status of krb5 please refer to
its security tracker page at:

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: